LASIK手术在治疗成年人屈光参差性弱视中的作用

目的探讨准分子激光原位角膜磨镶术(LASIK)在治疗成年人屈光参差性弱视中的作用。设计前瞻性病例系列。研究对象临床已确诊为屈光参差性弱视并自愿接受LASIK治疗的成年患者11例(11眼)。方法对上述患者行常规角膜屈光手术前检查,行LASIK手术治疗后随访3～12个月,观察患者裸眼视力、最佳矫正视力、屈光状态、角膜地形图等,并进行比较。主要指标手术前后患者的裸眼视力、最佳矫正视力、屈光状态、角膜地形图。结果术前裸眼视力(0.04±0.01),最佳矫正视力(0.54±0.14),术后平均4个月裸眼视力(0.64±0.22),最佳矫正视力(0.65±0.21)。术前屈光度(-10.52±6.07)D,术后屈光度(-0.25±2.26)D,11眼手术后裸眼视力和屈光度与术前相比均得到明显改善,其中7眼(63.64%)术后裸眼视力(0.76±0.18)好于术前最佳矫正视力(0.60±0.13)。结论本文的小样本资料显示,LASIK在治疗成年人屈光参差性弱视中有一定的作用。     

角膜屈光手术治疗成人弱视的疗效分析

目的:观察角膜屈光手术治疗成人屈光不正性弱视的疗效。方法:对53例76眼成人屈光不正性弱视患者行角膜屈光手术治疗,其中38眼行LASIK手术,32眼行薄瓣LASIK手术,6眼行LASEK手术。随访观察12mo,回顾性分析其疗效。结果:患者术前屈光度球镜-13.50～+3.00(平均-7.33±3.36)D,散光-4.25～+2.00(平均-1.40±0.92)D,最佳矫正视力平均0.57±0.06。术后1mo,裸眼视力平均0.64±0.16,与术前最佳矫正视力有显著性差异(P<0.05)。术后12mo,裸眼视力进一步提高,平均0.72±0.20,与术前最佳矫正视力有显著性差异(P<0.05),与术后1mo裸眼视力比较,有显著性差异。术后视力高于术前最佳矫正视力者43眼(57%)。术后视力与术前最佳矫正视力相同者33眼(43%)。结论:准分子激光角膜屈光手术治疗成人弱视,疗效可靠,可有效提高患者视力。     

LASEK联合MMC治疗高度近视的临床观察

目的探讨LASEK MMC治疗高度近视的临床效果。方法38例(76眼)行LASEK手术的高度近视,术前等效球镜度数-6.00~-13.00 D。术中将浸有0.02%的MMC海绵片覆盖于角膜切削区,覆盖时间同角膜切削时间。结果术后3个月62眼达到术前最佳矫正视力(BCVA),12眼超过术前BCVA 1行,2眼低于术前BCVA 1行。术后3个月时平均屈光度为( 0.62±0.35)D,与术前平均屈光度相比差异有统计学意义(P<0.01)。术后3个月8眼(10.53%)有0.5级haze,所有病例无1级以上haze出现。结论LASEK MMC治疗高度近视具有良好的安全性、有效性和可预测性。     

LASIK治疗近视性屈光参差性弱视

目的 评价准分子激光原位角膜磨镶术(laser in situ keratomileusis;LASIK)治疗近视性屈光参差性弱视的临床疗效.方法 用LASIK手术矫正8位近视性屈光参差性弱视患者,比较手术前后屈光不正的度数和立体视锐度的改变,并将术前的最佳矫正视力和术后第1天,第3天,第10天的裸眼视力以及6～9个月随访的裸眼视力和最佳矫正视力进行比较和分析.结果 术前屈光度数高眼的屈光不正的等效球镜平均为(-10.06±1.50)D,术后该眼屈光不正的等效球镜平均为(0.19±0.32)D.手术前后立体视锐度差别有统计学意义(z=-2.207,P=0.027).术前屈光度数高眼矫正视力和术后该眼矫正视力相比,差别有统计学意义(F=11.431;P=0.000).结论 LASIK手术能安全,有效地减少近视性屈光参差,提高患者的视力和立体视功能.     

单眼行LASIK或LASEK术后疗效观察

目的:探讨单眼行准分子激光原位角膜磨镶术(laserin situkeratomileusis,LASIK)或准分子激光上皮下角膜磨镶术(laser epithelial keratomileusis,LASEK)治疗单眼近视所致屈光参差的效果。方法:采用对单眼等效球镜度>-2.50D的近视性屈光参差患者62例,进行单眼LASIK或LASEK手术。术眼及非术眼手术前后平均屈光度、屈光参差度数、最佳矫正视力和裸眼视力进行评价,术后随访6~24mo。结果:术眼术前平均等值球镜度数为-3.66(-2.50~-6.25)D,术后减少至-0.62(0.00~-1.00)D。LASIK或LASEK对平均等值球镜改变为-3.38(-2.50~-5.50)D。术前两眼平均屈光参差为-3.25(-2.50~-6.25)D,术后减少至-0.85(0.00~-1.75)D。术前术后最佳矫正视力(BCVA)范围均为0.6~1.0,平均最佳矫正视力从术前0.8提高到1.04;术后裸眼视力≥1.0者59眼,平均裸眼视力从术前的0.1提高至术后的1.0。非术眼术前平均等值球镜度数为-0.85(+0.25~-1.50)D,术后平均等值球镜度数为-1.85(-0.50~-3.50)D,平均裸眼视力从术前的0.5术后下降至0.1。结论:单眼LASIK或LASEK治疗近视性屈光参差虽然能提高患眼的最佳矫正视力和裸眼视力,解除单眼近视、散光所致的屈光参差对眼镜或角膜接触镜不能耐受的痛苦,而且对恢复双眼单视功能具有积极意义,但是同时我们也发现术后非术眼有近视加深的趋势,而且非术眼原近视度数越高近视加深越快越多。     

屈光手术治疗儿童单眼高度近视性弱视的初步报告

目的探讨应用PRK治疗儿童单眼高度近视屈光参差性弱视的可行性、有效性。方法回顾性分析12例5-10岁的儿童单眼高度近视屈光参差性弱视的患儿,对近视度数较高的12眼进行PRK手术治疗,术后再进行系统的脑力影像网络弱视治疗,随访6-12个月。观察手术前后双眼屈光参差差距变化、术眼视力、屈光度、对比敏感度和立体视改善情况。结果手术眼屈光度从术前平均等效球镜-9．77±3．64D降至术后-2．79±2．33D,手术前后屈光度降幅平均为6．98±3．09D。术前双跟屈光参差差距平均为8．65±4．06D,术后双眼屈光参差平均降幅8．25±4．23D。矫正视力从术前0．36±0．24提高到术后的0．45±0．28,术后视力改善的占96．6％,其中提高1行的占36％,提高2行或以上者占62％,未见视力减退病例。在所有术前屈光参差性弱视眼中,2眼术后1个月矫正视力即达到1．0,其他10眼矫正视力均较术前持平或有不同程度改善（提高1-3行）。术后戴镜条件下的对比敏感度和立体视功能与术前持平或有不同程度的改善,其中具有立体视功能的比例从术前的15．3％提高至术后的55．4％。所有病例未见有别于成人PRK的并发症。结论对于单眼高度近视屈光参差性弱视的低龄儿童患者施行PRK手术治疗是一种可选择的安全有效的治疗手段,不仅可以迅速有效地矫正屈光不正,提高视力,而且更为后期弱视治疗提供有利的条件。     

准分子激光前弹力层下角膜磨镶术与准分子激光上皮瓣下角膜磨镶术治疗相对薄角膜近视的临床对比研究

目的探讨准分子激光前弹力层下角膜磨镶术(sub-Bowman keratomileusis,SBK)和准分子激光上皮瓣下角膜磨镶术(laser-assisted sub-epithelial keratomileusis,LASEK)矫治相对薄角膜近视的疗效。方法对62例(124眼)相对薄角膜近视患者行SBK或LASEK。其中30例(60眼)行SBK,32例(64眼)行LASEK。随访6个月,记录2组患者术后视力、残余屈光度、角膜上皮下雾状混浊(haze)情况,并进行统计学分析。结果术后早期LASEK组有轻度或中度不适感。2组术后角膜地形图检查均无圆锥角膜发生。术后1d、3d、7d SBK组平均视力为0.89±0.35、1.03±0.44、1.08±0.22,LASEK组平均视力为0.61±0.28、0.75±0.30、0.98±0.16,2组比较差异均有统计学意义(均为P<0.05),术后早期SBK组视力恢复快。术后1个月、3个月、6个月2组视力、残余屈光度比较差异均无统计学意义(均为P>0.05)。术后6个月时SBK组58眼(96.7%)达到了术前最佳矫正视力,LASEK组61眼(95.3%)达到了术前最佳矫正视力,2组比较差异无统计学意义(χ2=0.15,P=0.70)。2组术后最佳矫正视力无一例下降。LASEK组个别患者出现0.5级或1级haze,SBK组无haze产生。结论 SBK和LASEK矫正薄角膜近视均安全、有效,SBK在早期视力恢复和避免haze产生方面优于LASEK。     

LASIK治疗小儿屈光参差性弱视初步报告

目的探讨用LASIK治疗小儿屈光参差性弱视的可能性.方法对1 7例4～1 2岁的屈光参差患儿进行LASIK手术治疗,术前屈光度从+5.50～-11.00D不等,且两眼屈光参差超过5D.对屈光度较大的患眼施行手术.手术在表面麻醉或基础麻醉下施行,术后再进行弱视治疗.结果经术后6～13个月随访,17眼裸眼视力均较术前提高,6眼裸眼视力超过术前矫正视力,7眼达术前矫正视力;12眼屈光度在±1.00D之间.结论对屈光参差性弱视小儿施行LASIK,可矫正屈光不正,提高视力,为弱视治疗提供保障.     

准分子激光角膜屈光手术治疗远视性屈光参差性弱视

目的:探讨准分子激光角膜屈光手术治疗成人或大龄青少年远视性屈光参差性弱视的效果.方法:选取2014-03/2016-03在我院治疗的成人或大龄青少年远视性屈光参差性弱视患者26例26眼,均行准分子激光原位角膜磨镶术,观察患者裸眼视力(uncorrected visual acuity,UCVA)、最佳矫正视力(best corrected visual acuity,BCVA)、屈光度及立体视功能情况.结果:患者随访结束时屈光度的等效球镜和双眼间屈光参差分别为1.47±0.51D和1.15±0.22D,均较术前明显降低(P<0.05);患者随访结束时看远和看近UCVA及BCVA分别为0.26±0.13和0.23±0.09、0.42±0.09和0.31±0.16,均较术前明显提高(P<0.05);患者随访结束时立体视功能较术前明显改善(P<0.05),术后立体视功能<100"眼数比例为23%.结论:成人或大龄青少年远视性屈光参差性弱视行准分子激光角膜屈光手术治疗有一定的临床效果.     

准分子激光上皮瓣下角膜磨镶术矫治超高度近视的临床研究

目的探讨准分子激光上皮瓣下角膜磨镶术(LASEK)矫治超高度近视的疗效与安全性。方法应用德国Zeiss MEL 80准分子激光器对-10.00以上的超高度近视22例(40眼)施行LASEK术,术前平均裸眼视力0.02±0.02 (0.01～0.05),平均等效球镜(-12.75±2.30)D。随访6个月,观察术后症状、裸眼视力和最佳矫正视力、显然屈光度、眼压、角膜愈合程度和并发症。结果LASEK术后角膜上皮愈合时间1～4d。6个月裸眼视力≥0.5者占95%,裸眼视力≥1.0者占27.5%。平均裸眼视力0.70±0.20,平均等效球镜(-1.25±1.78)D。haze发生14眼(35.0%),haze 0.5级10眼(25.0%),haze 1.0级4眼(10.0%)。5例出现眩光。结论LASEK术可以安全有效地进行超高度近视的矫治,可作为超高度近视治疗的一种较好选择。     

超高度近视有晶状体眼后房型人工晶状体植入术后残留近视的LASEK治疗效果

背景 有晶状体眼后房型人工晶状体(PPC-ICL)植入术及有晶状体眼后房型散光人工晶状体(PPC-TICL)植入术是矫正高度近视及近视合并散光的主要方法,但术后常残留低度近视,需进一步行准分子激光上皮下角膜磨镶术(LASEK)矫治残留近视,这种疗法的有效性和安全性值得关注. 目的 观察PPC-ICL或PPC-TICL植入术治疗超高度近视及近视散光后LASEK治疗残留近视的安全性和有效性. 方法 采用前瞻性病例分析研究方法,收集2010年7月至2015年3月于贵州医科大学附属医院眼科就诊的等效球镜度≥-20.00 D的超高度近视且接受PPC-ICL植入术或PPC-TICL植入术后6个月仍残留近视者9例14眼,其中行PPC-ICL植入术者4例8眼,行PPC-TICL植入术者5例6眼,术眼最佳矫正视力(BCVA)可提高2行以上.对术眼进行角膜厚度、角膜地形图、角膜内皮细胞计数、眼压和眼底检查,排除禁忌证后行LASEK,术后随访12个月,比较LASEK手术前后裸眼视力(UCVA)、BCVA、角膜上皮下雾状混浊(haze)、拱高、晶状体、眼压变化,评价PPC-ICL或PPC-TICL植入矫正超高度近视后用LASEK矫正残留近视的有效性和安全性.结果 所有术眼手术顺利,术后术眼眼前节无明显炎症反应和严重并发症.术前、PPC-ICL植入术后6个月和LASEK术后12个月术眼UCVA、BCVA总体比较差异均有统计学意义(F=31.360、1.778,均P＜0.05),LASEK术后术眼UCVA均高于术前BCVA.术前、PPC-ICL植入术后6个月和LASEK术后12个月术眼屈光度分别为(-22.27±4.29)、(-3.75±2.25)和(-0.42±0.63)D,总体比较差异有统计学意义(F=46.370,P＜0.05),LASEK术后术眼屈光度明显低于术前、PPC-ICL植入术后,差异均有统计学意义(均P＜0.05).术眼术前、PPC-ICL术后6个月及LASEK植入术后12个月眼压、角膜内皮细胞计数总体比较差异均无统计学意义(F=1.663、1.055,均P＞0.05).LASEK术后12个月和PPC-ICL术后6个月拱高分别为(0.69±0.26) mm和(0.71±0.29)mm,差异无统计学意义(t=0.192,P＞0.05). 结论 PPC-ICL或PPC-TICL植入术矫正超高度近视常残留一定程度的近视度,进一步用LASEK矫正残留近视安全、有效.     

Visual outcome after excimer laser refractive surgery in adult patients with amblyopia

PURPOSE: To evaluate the visual and refractive outcome in adult patients wi th refractive and anisometropic amblyopia treated with photorefractive keratectomy. METHODS: An interventional non-comparative study was performed on 50 consecutive patients with amblyopia treated with photorefractive keratectomy. Sixty-eight eyes of 18 participants with bilateral refractive amblyopia and 32 participants with unilateral anisometropic amblyopia were studied. The photorefractive keratectomy was performed with MEL 70 G-Scan excimer laser. Follow-up was 1, 3, 6, and 12 months after the treatment. The mean outcome measures were uncorrected visual acuity (UCVA), best spectacle corrected visual acuity (BCVA), refraction, and corneal transparency. RESULTS: In 64.7% of eyes, the UCVA at 12 months after the treatment was better than or equal to their preoperative BCVA. A total of 82.4% of eyes improved their BCVA one or more lines. No eye lost lines of BCVA, 17.6% remained unvaried, 50% gained one line, 20.6 % gained two lines, and 11.8% gained three lines of BCVA. The number of lines gained correlated strongly with diopters of anisometropia between eyes (p<0.01). The mean sphere changed from -5.62+/-3.37 D to -0.47+/-1 D, mean cylinder varied from -2.36+/-1.57 to -0.18+/-0.41 D, and the spherical equivalent varied from -6.82+/-3.1 to -0.45+/-1.08 D. No clinically significant haze was observed. CONCLUSIONS: Excimer laser refractive surgery appears to be a safe and efficient procedure in the treatment of ametropic and anisometropic amblyopia in adults. Adult patients with anisometropic and refractive amblyopia could benefit from the refractive treatment with significant improvement of the visual acuity.     

Laser-assisted subepithelial keratectomy for dry eye associated with soft contact lenses

PURPOSE: To evaluate the efficacy and safety of laser-assisted subepithelial keratectomy (LASEK) in myopic patients with preoperative dry eye associated with extended soft contact lens use. SETTING: Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan. METHODS: This nonrandomized prospective interventional case series study comprised 9 patients (18 eyes) with dry eye and keratoconjunctivitis associated with long-term complicated soft contact lens use. Prior to LASEK surgery and for 1 year following surgery, measurements and comparisons were made of uncorrected visual acuity, best corrected visual acuity (BCVA), manifest refraction, symptoms, tear function, ocular surface abnormality, and corneal sensitivity. RESULTS: No significant differences (P > .05) in the mean results of the Schirmer test with anesthesia and tear breakup times before and after LASEK were evident. Corneal sensitivity recovered within 1 month after LASEK. No complications occurred during or after LASEK. Subepithelial haze and superficial punctate epithelial defects occurred in 1 eye, representing a loss of 1 Snellen line of BCVA. CONCLUSION: Laser-assisted subepithelial keratomileusis in dry eyes and keratoconjunctivitis associated with complicated soft contact lens wearing was safe and efficacious.     

Comparison of higher-order aberrations after wavefront-guided laser in situ keratomileusis and laser-assisted subepithelial keratectomy

PURPOSE: To compare the higher-order aberrations (HOAs) in 70 eyes (38 patients) that had wavefront-guided laser in situ keratomileusis (LASIK) with those in 70 eyes (40 patients) that had wavefront-guided laser-assisted subepithelial keratectomy (LASEK) for the treatment of myopia. SETTING: Department of Ophthalmology, Yonsei University College of Medicine, Myongdong Bal-geun sesang Eye Clinic, and Seran Eye Center, Seoul, Korea. METHODS: In a prospective study, 140 consecutive eyes of 78 patients were treated with wavefront-guided LASIK or LASEK according to the patient's choice after each procedure had been thoroughly explained. The patients were followed for 6 months. Best corrected visual acuity (BCVA), uncorrected visual acuity (UCVA), manifest refraction, and wavefront aberrations were measured at baseline and 1, 3, and 6 months after surgery. RESULTS: There were no significant differences in postoperative BCVA, UCVA, and manifest refraction between groups. The mean root-mean-square wavefront error of HOAs for a scotopic pupil in the wavefront-guided LASIK group was significantly smaller than that in the wavefront-guided LASEK group at 1 month. Analyzing individual Zernike coefficients, the spherical aberration and second coma were significantly smaller in the wavefront-guided LASIK group than in the wavefront-guided LASEK group at 1 month. This difference in HOAs between groups disappeared at 3 and 6 months. CONCLUSIONS: The HOAs in the scotopic condition were not different between the wavefront-guided LASIK and LASEK groups beginning 3 months after surgery. However, the HOAs in the LASIK and LASEK groups had a different time course, especially in the case of spherical aberration. This finding suggests that postoperative changes in aberration contribute to the final outcome of wavefront-guided ablation.     

Laser-assisted subepithelial keratectomy and photorefractive keratectomy versus conventional treatment of myopic anisometropic amblyopia in children

PURPOSE: To evaluate the visual and refractive results of photorefractive keratectomy (PRK) and laser-assisted subepithelial keratectomy (LASEK) for high myopic anisometropia with amblyopia and contact lens (CL) intolerance in children. Setting: Department of Ophthalmology, Masaryk University Hospital, Brno, Czech Republic. METHODS: This prospective comparative study comprised 27 children with high myopic anisometropia and amblyopia. The mean age of the children was 5.4 years (range 4 to 7 years). Multizonal PRK (13 eyes) or LASEK (14 eyes) was performed in the more myopic eye under general anesthesia using the Nidek EC-5000 excimer laser. After surgery, the dominant eye was patched. The postoperative visual and refractive outcomes were analyzed; all children had a 2-year follow-up. The 27 children (Group A) were compared with a control group of 30 children (mean age 5.1 years) (Group B) in whom myopic anisometropia and amblyopia were treated conventionally by CLs and patching the dominant eye. The visual acuity and binocular vision outcomes in both groups were analyzed and compared. RESULTS: In Group A, the mean spherical equivalent refraction was -8.25 diopters (D) +/- 2.37 (SD) (range -6.00 to -11.25 D) preoperatively and -1.61 +/- 0.73 D (range +0.50 to -2.25 D) postoperatively. The mean best corrected visual acuity (BCVA) was 0.23 +/- 0.21 preoperatively and 0.78 +/- 0.19 at 2 years. In Group B, the mean BCVA was 0.16 +/- 0.19 at the start of CL correction and amblyopia therapy and improved to 0.42 +/- 0.15 after 2 years. The mean BCVA at the final examination was significantly better in Group A (P<.05). Binocular vision improvement expressed by the proportion of patients who gained fusion and stereopsis was better overall in Group A (78%) than in Group B (33%) (P<.05). There were no complications postoperatively. CONCLUSIONS: Photorefractive keratectomy and LASEK were effective and safe methods for correcting high myopic anisometropia and improving amblyopia in children aged 4 to 7 years who were CL intolerant. Visual acuity and binocular vision outcomes were better in children who received permanent surgical correction of anisometropia than in those who were treated conventionally by CLs.     

双眼视知觉网络训练对弱视治疗短期视力提升效果的临床研究

目的探讨双眼视知觉网络训练中,影响最佳矫正视力(BCVA)值提升的相关因素以及各种训练内容的功效。 方法选取2018年10月至2019年2月于深圳市眼科医院斜视与小儿眼科门诊就诊的双眼弱视患者29例(58只眼)。其中,男性18例(36只眼),女性11例(22只眼);年龄3~15岁,平均年龄(6.1±2.6)岁。将所有患者按照屈光状态和弱视类型进行分组。全部患者均采用SJ-RS-WL2015型多媒体视觉功能训练治疗系统的网络平台进行训练3个月,检查并记录训练前和训练后,患者的最佳矫正视力、患眼屈光状态和患者的弱视类型。采用均数±标准差或中位数(四分位间距)描述患者的年龄、训练次数、BCVA值和等效球镜(SE)。采用配对t检验或Wilcoxon符号秩和检验,比较训练前后患者BCVA值和SE的差异。采用Spearman相关性系数法,分析训练前后患者BCVA的提高值分别与训练前BCVA值和SE的相关性。采用Mann-Whitney U秩和检验,比较训练前后不同弱视类型组患者的BCVA值与SE。采用单因素和多因素回归分析,寻找影响患者BCVA值的相关因素。 结果所有患者中,屈光不正性弱视患者有13例(26只眼),占44.8%;屈光参差性弱视患者有11例(22只眼),占37.9%;斜视性弱视患者有4例(8只眼),占13.8%;形觉剥夺性弱视患者有1例(2只眼),占3.5%。训练后3个月,患者右眼和左眼的平均BCVA提高值分别为(0.14±0.13)和(0.18±0.15),经Spearman相关分析,右眼和左眼BCVA的提高值与训练前BCVA值均呈负相关,其相关性有统计学意义(r＝-0.753,-0.439;P<0.05)。患者右眼和左眼SE的提高值分别为(-0.15±0.78)D和(-0.25±0.79)D,经Spearman相关分析,右眼和左眼SE的提高值与训练前患眼SE不存在线性关系,其相关性无统计学意义(r＝-0.339,-0.270;P>0.05)。训练后3个月,SE≤3.00 D组、3.00 D≤SE≤6.00 D组和SE>6.00 D组患者右眼BCVA的提高值分别为0.00(0.10)、0.20(0.10)和0.20(0.10);左眼BCVA的提高值分别为0.00(0.20)、0.30(0.15)和0.10(0.20)。三组患者右眼SE的提高值分别为0.00(0.00)D、0.00(1.19)D和-1.12(0.75)D;左眼SE的提高值分别为(-0.01±0.52)D、(-0.24±0.84)D和(-0.72±0.96)D。屈光不正性弱视组和屈光参差性弱视组患者,右眼和左眼SE提高值的比较,组间的差异无统计学意义(Z＝1.412,1.968;P>0.05)。精细刺激、视觉技巧、Gabor训练、对比敏感度和信息提取等不同训练内容对患者右眼BCVA提高值影响的比较,差异无统计学意义(t＝0.092,1.614,0.028,0.340,-1.016;P>0.05);对患者左眼BCVA提高值影响的比较,差异无统计学意义(t＝-0.007,0.572,0.484,1.889,0.530;P>0.05)。训练后3个月,患者立体视的平均值为(-146.90±290.26)″。 结论短期双眼视知觉网络训练有助于弱视患者BCVA值的提升。患者的初始BCVA值越低,训练后BCVA的提高值越大。不同屈光状态与不同弱视类型组患者BCVA的提高值相当。然而,不同的训练内容对患者BCVA值的提升效果仍无法确认。     

准分子激光上皮瓣下角膜磨镶术治疗高度和超高度近视

目的探讨准分子激光上皮瓣下角膜磨镶术（Iaser subepithelial keratomileusis,LASEK）治疗高度和超高度近视的远期效果及影响因素。方法LASEK治疗近视患者105例202眼，分为高度近视组（A组，等效球镜-6.00-9.75D）56例104眼和超高度近视组（B组，等效球镜≥-10.00D）49例98眼．术后观察裸眼视力（uncorrected vision acuity，UCVA）、最佳矫正视力（bese corrected vision acuity，BCVA）、屈光状态、Simk等效值、角膜中央厚度、角膜后表面Diff值的变化情况以及Haze发生率，随访2年以上。结果术后第24个月时A、B两组UCVA≥0.8者分别为82．7％、694％；屈光度在±1.00D以内者分别为89.4％、76.5％；A组术后有19眼BCVA较术前提高1-2行，3眼下降1行，B组术后有16眼BCVA较术前提高1-2行，5眼下降1行，2眼下降2行：A组、B组术后第1个月角膜Simk等效值和角膜中央厚度分别与组内术后第3、第6、第12、第24个月相比较差异有显著性（P〈0．05），而术后3个月以后不同时间点相比较差异无显著性；A、B组术后角膜后表面Diff值较术前增加，B组增加明显大于A组，两组术后不同时间点相比较差异有显著性，A、B组角膜后表面Diff值术后不同时间点组内相比较差异无显著性：术后第24个月B组Haze发生率明显高于A组，两组相比较差异有显著性（U=4070.000，P=0.001）。结论LASEK是治疗高度和超高度近视安全有效的方法。     

温州市区小学生弱视的筛选及屈光状态分析

目的 研究弱视在小学生中的发病率、屈光状态分布和主要影响因素。方法 在全市视力 小学生中,用列镜筛选,再用扩瞳检影验光进行屈光测定,选择矫正视力≤４．９;眼科检查无器质性病变的弱视患者,分别检查注视性质,眼位、单视功能及询问填写调查表。并分别作统计学处理。结果 在受检６３６００眼中,确诊弱视１２０５人,２２６６只眼,患病为３．７８％;以屈光不正弱视为主,其中远视性弱视最高。弱视程度与屈光度、注视性